/* macros */
#define LEN(x) (sizeof (x) / sizeof (x[0]))
+#define MAX(x,y) ((x)>(y)?(x):(y))
/* color enum */
enum {ColorFG, ColorBG, ColorLast};
int itemb; /* item border */
int itemw; /* item width */
int itemh; /* item height */
- int border; /* window border */
+ int border; /* window border width */
+ int separator; /* menu separator width */
};
/* screen geometry structure */
struct Item {
char *label;
char *output;
- int x, y;
+ int y;
+ int h;
+ size_t labellen;
struct Item *next;
struct Menu *submenu;
};
struct Item *selected;
int x, y, w, h;
unsigned level;
- unsigned nitems;
+ Drawable pixmap;
Window win;
};
static void setupdc(void);
static void setupgeom(void);
static void setupgrab(void);
-static struct Item *allocitem(size_t count, const char *label, const char *output);
+static struct Item *allocitem(const char *label, const char *output);
static struct Menu *allocmenu(struct Menu *parent, struct Item *list, unsigned level);
-static void getmenuitem(Window win, int x, int y,
- struct Menu **menu_ret, struct Item **item_ret);
+static void getmenuitem(Window win, int y, struct Menu **menu_ret, struct Item **item_ret);
static void drawmenu(void);
static void calcscreengeom(void);
static void calcmenu(struct Menu *menu);
static void setcurrmenu(struct Menu *currmenu_new);
static void parsestdin(void);
static void run(void);
+static void freewindow(struct Menu *menu);
static void cleanupexit(void);
static void usage(void);
/* geometry variables */
static struct Geometry geom;
-static struct ScreenGeometry sgeom;
+static struct ScreenGeometry screengeom;
/* flag variables */
static Bool override_redirect = True;
geom.itemh = dc.fonth + ITEMB * 2;
geom.itemw = ITEMW;
geom.border = BORDER;
+ geom.separator = SEPARATOR;
}
/* grab pointer */
/* allocate an item */
static struct Item *
-allocitem(size_t count, const char *label, const char *output)
+allocitem(const char *label, const char *output)
{
struct Item *item;
if ((item = malloc(sizeof *item)) == NULL)
err(1, "malloc");
- if ((item->label = strdup(label)) == NULL)
- err(1, "strdup");
- if ((item->output = strdup(output)) == NULL)
- err(1, "strdup");
- item->x = 0;
- item->y = count * geom.itemh;
+ if (*label == '\0') {
+ item->label = NULL;
+ item->output = NULL;
+ } else {
+ if ((item->label = strdup(label)) == NULL)
+ err(1, "strdup");
+ if ((item->output = strdup(output)) == NULL)
+ err(1, "strdup");
+ }
+ item->y = 0;
+ item->h = item->label ? geom.itemh : geom.separator;
+ if (item->label == NULL)
+ item->labellen = 0;
+ else
+ item->labellen = strlen(item->label);
item->next = NULL;
item->submenu = NULL;
menu->parent = parent;
menu->list = list;
menu->selected = NULL;
- menu->x = 0;
- menu->y = 0;
menu->w = geom.itemw;
- menu->h = geom.itemh;
+ menu->h = 0; /* calculated by calcmenu() */
+ menu->x = 0; /* calculated by calcmenu() */
+ menu->y = 0; /* calculated by calcmenu() */
menu->level = level;
- menu->nitems = 0;
swa.override_redirect = override_redirect;
swa.background_pixel = dc.decoration[ColorBG];
swa.border_pixel = dc.decoration[ColorFG];
swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask | ButtonReleaseMask
- | PointerMotionMask;
+ | PointerMotionMask | LeaveWindowMask;
menu->win = XCreateWindow(dpy, rootwin, 0, 0, geom.itemw, geom.itemh, geom.border,
CopyFromParent, CopyFromParent, CopyFromParent,
CWOverrideRedirect | CWBackPixel | CWBorderPixel | CWEventMask,
char *label, *output;
unsigned level = 0;
unsigned i;
- struct Item *item, *p;
- struct Menu *menu;
- struct Menu *prevmenu = NULL;
+ struct Item *curritem = NULL; /* item currently being read */
+ struct Menu *prevmenu = NULL; /* menu the previous item was added to */
+ struct Item *item; /* dummy item for for loops */
+ struct Menu *menu; /* dummy menu for for loops */
size_t count = 0; /* number of items in the current menu */
while (fgets(buf, BUFSIZ, stdin) != NULL) {
if (*s == '\n')
*s = '\0';
- item = allocitem(count, label, output);
+ curritem = allocitem(label, output);
if (prevmenu == NULL) { /* there is no menu yet */
- menu = allocmenu(NULL, item, level);
+ menu = allocmenu(NULL, curritem, level);
rootmenu = menu;
prevmenu = menu;
count = 1;
if (menu == NULL)
errx(1, "reached NULL menu");
- for (p = menu->list; p->next != NULL; p = p->next)
+ for (item = menu->list; item->next != NULL; item = item->next)
;
- p->next = item;
+ item->next = curritem;
prevmenu = menu;
} else if (level == prevmenu->level) { /* item is a continuation of current menu */
- for (p = prevmenu->list; p->next != NULL; p = p->next)
+ for (item = prevmenu->list; item->next != NULL; item = item->next)
;
- p->next = item;
+ item->next = curritem;
} else if (level > prevmenu->level) { /* item begins a new menu */
- menu = allocmenu(prevmenu, item, level);
+ menu = allocmenu(prevmenu, curritem, level);
- for (p = prevmenu->list; p->next != NULL; p = p->next)
+ for (item = prevmenu->list; item->next != NULL; item = item->next)
;
- p->submenu = menu;
+ item->submenu = menu;
prevmenu = menu;
}
+ count++;
}
}
int a, b; /* unused variables */
unsigned mask; /* unused variable */
- XQueryPointer(dpy, rootwin, &w1, &w2, &sgeom.cursx, &sgeom.cursy, &a, &b, &mask);
- sgeom.screenw = DisplayWidth(dpy, screen);
- sgeom.screenh = DisplayHeight(dpy, screen);
+ XQueryPointer(dpy, rootwin, &w1, &w2, &screengeom.cursx, &screengeom.cursy, &a, &b, &mask);
+ screengeom.screenw = DisplayWidth(dpy, screen);
+ screengeom.screenh = DisplayHeight(dpy, screen);
}
/* recursivelly calculate height and position of the menus */
calcmenu(struct Menu *menu)
{
XWindowChanges changes;
- struct Item *item, *p;
- size_t i;
+ XSizeHints sizeh;
+ struct Item *item;
+ int labelwidth;
- /* calculate number of items */
- i = 0;
- for (item = menu->list; item != NULL; item = item->next)
- i++;
- menu->nitems = i;
- menu->h = geom.itemh * i;
+ /* calculate items positions and menu width and height */
+ menu->w = geom.itemw;
+ for (item = menu->list; item != NULL; item = item->next) {
+ item->y = menu->h;
+ if (item->label == NULL) /* height for separator item */
+ menu->h += geom.separator;
+ else
+ menu->h += geom.itemh;
+
+ labelwidth = XTextWidth(dc.font, item->label, item->labellen) + dc.fonth * 2;
+ menu->w = MAX(menu->w, labelwidth);
+ }
/* calculate menu's x and y positions */
if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */
- if (sgeom.screenw - sgeom.cursx >= menu->w)
- menu->x = sgeom.cursx;
- else if (sgeom.cursx > menu->w)
- menu->x = sgeom.cursx - menu->w;
-
- if (sgeom.screenh - sgeom.cursy >= menu->h)
- menu->y = sgeom.cursy;
- else if (sgeom.screenh > menu->h)
- menu->y = sgeom.screenh - menu->h;
+ if (screengeom.screenw - screengeom.cursx >= menu->w)
+ menu->x = screengeom.cursx;
+ else if (screengeom.cursx > menu->w)
+ menu->x = screengeom.cursx - menu->w;
+
+ if (screengeom.screenh - screengeom.cursy >= menu->h)
+ menu->y = screengeom.cursy;
+ else if (screengeom.screenh > menu->h)
+ menu->y = screengeom.screenh - menu->h;
} else { /* else, calculate in respect to parent menu */
/* search for the item in parent menu that generates this menu */
- for (p = menu->parent->list; p->submenu != menu; p = p->next)
+ for (item = menu->parent->list; item->submenu != menu; item = item->next)
;
- if (sgeom.screenw - (menu->parent->x + menu->parent->w) >= menu->w)
+ if (screengeom.screenw - (menu->parent->x + menu->parent->w) >= menu->w)
menu->x = menu->parent->x + menu->parent->w;
else if (menu->parent->x > menu->w)
menu->x = menu->parent->x - menu->w;
- if (sgeom.screenh - p->y > menu->h)
- menu->y = p->y;
- else if (sgeom.screenh - menu->parent->y > menu->h)
+ if (screengeom.screenh - (item->y + menu->parent->y) > menu->h)
+ menu->y = item->y + menu->parent->y;
+ else if (screengeom.screenh - menu->parent->y > menu->h)
menu->y = menu->parent->y;
- else if (sgeom.screenh > menu->h)
- menu->y = sgeom.screenh - menu->h;
- }
-
- /* calculate position of each item in the menu */
- for (i = 0, item = menu->list; item != NULL; item = item->next, i++) {
- item->x = menu->x;
- item->y = menu->y + i * geom.itemh;
+ else if (screengeom.screenh > menu->h)
+ menu->y = screengeom.screenh - menu->h;
}
/* update menu geometry */
changes.height = menu->h;
+ changes.width = menu->w;
changes.x = menu->x;
changes.y = menu->y;
- XConfigureWindow(dpy, menu->win, CWHeight | CWX | CWY, &changes);
+ XConfigureWindow(dpy, menu->win, CWWidth | CWHeight | CWX | CWY, &changes);
+
+ /* set window manager size hints */
+ sizeh.flags = PMaxSize | PMinSize;
+ sizeh.min_width = sizeh.max_width = menu->w;
+ sizeh.min_height = sizeh.max_height = menu->h;
+ XSetWMNormalHints(dpy, menu->win, &sizeh);
+
+ /* create pixmap */
+ menu->pixmap = XCreatePixmap(dpy, menu->win, menu->w, menu->h,
+ DefaultDepth(dpy, screen));
+ /* calculate positions of submenus */
for (item = menu->list; item != NULL; item = item->next) {
if (item->submenu != NULL)
calcmenu(item->submenu);
/* get menu and item of given window and position */
static void
-getmenuitem(Window win, int x, int y,
+getmenuitem(Window win, int y,
struct Menu **menu_ret, struct Item **item_ret)
{
struct Menu *menu = NULL;
for (menu = currmenu; menu != NULL; menu = menu->parent) {
if (menu->win == win) {
for (item = menu->list; item != NULL; item = item->next) {
- if (x >= item->x && x <= item->x + geom.itemw &&
- y >= item->y && y <= item->y + geom.itemh) {
+ if (y >= item->y && y <= item->y + item->h) {
goto done;
}
}
struct Item *item;
for (menu = currmenu; menu != NULL; menu = menu->parent) {
- size_t nitems; /* number of items before current item */
-
- nitems = 0;
for (item = menu->list; item != NULL; item = item->next) {
unsigned long *color;
- size_t labellen;
int labelx, labely;
- int y;
/* determine item color */
- if (item == menu->selected)
+ if (item->label == NULL)
+ color = dc.decoration;
+ else if (item == menu->selected)
color = dc.pressed;
else
color = dc.unpressed;
- /* calculate item's y position */
- y = nitems * geom.itemh;
-
/* draw item box */
XSetForeground(dpy, dc.gc, color[ColorBG]);
- XFillRectangle(dpy, menu->win, dc.gc, 0, y,
- geom.itemw, geom.itemh);
+ XFillRectangle(dpy, menu->pixmap, dc.gc, 0, item->y,
+ menu->w, item->h);
+
+ /* continue if item is a separator */
+ if (item->label == NULL)
+ continue;
/* draw item label */
- labellen = strlen(item->label);
labelx = 0 + dc.fonth;
- labely = y + dc.fonth + geom.itemb;
+ labely = item->y + dc.fonth + geom.itemb;
XSetForeground(dpy, dc.gc, color[ColorFG]);
- XDrawString(dpy, menu->win, dc.gc, labelx, labely, item->label, labellen);
+ XDrawString(dpy, menu->pixmap, dc.gc, labelx, labely,
+ item->label, item->labellen);
/* draw triangle, if item contains a submenu */
if (item->submenu != NULL) {
- int trianglex = geom.itemw - (geom.itemb + dc.fonth);
- int triangley = y + geom.itemb;
+ int trianglex = menu->w - dc.fonth + geom.itemb - 1;
+ int triangley = item->y + (3 * item->h)/8 -1;
XPoint triangle[] = {
{trianglex, triangley},
- {trianglex + dc.fonth, triangley + dc.fonth/2},
- {trianglex, triangley + dc.fonth},
+ {trianglex + item->h/8 + 1, item->y + item->h/2},
+ {trianglex, triangley + item->h/4 + 2},
{trianglex, triangley}
};
- XFillPolygon(dpy, menu->win, dc.gc, triangle, LEN(triangle),
+ XFillPolygon(dpy, menu->pixmap, dc.gc, triangle, LEN(triangle),
Convex, CoordModeOrigin);
}
- nitems++;
+ XCopyArea(dpy, menu->pixmap, menu->win, dc.gc, 0, item->y,
+ menu->w, item->h, 0, item->y);
}
}
}
drawmenu();
break;
case MotionNotify:
- getmenuitem(ev.xbutton.window, ev.xbutton.x_root, ev.xbutton.y_root,
- &menu, &item);
+ getmenuitem(ev.xbutton.window, ev.xbutton.y, &menu, &item);
if (menu != NULL && item != NULL) {
if (previtem != item) {
if (item->submenu != NULL)
previtem = item;
} else if (menu->selected != item)
menu->selected = item;
+ drawmenu();
}
- drawmenu();
break;
case ButtonRelease:
- getmenuitem(ev.xbutton.window, ev.xbutton.x_root, ev.xbutton.y_root,
- &menu, &item);
+ getmenuitem(ev.xbutton.window, ev.xbutton.y, &menu, &item);
if (menu != NULL && item != NULL) {
+ if (item->label == NULL)
+ break; /* ignore separators */
if (item->submenu != NULL) {
setcurrmenu(item->submenu);
} else {
cleanupexit();
}
break;
+ case LeaveNotify:
+ currmenu->selected = NULL;
+ drawmenu();
+ break;
}
}
}
+/* recursivelly free a pixmap */
+static void
+freewindow(struct Menu *menu)
+{
+ struct Item *item;
+
+ for (item = menu->list; item != NULL; item = item->next)
+ if (item->submenu != NULL)
+ freewindow(item->submenu);
+
+ XFreePixmap(dpy, menu->pixmap);
+ XDestroyWindow(dpy, menu->win);
+}
+
/* cleanup and exit */
static void
cleanupexit(void)
{
+ freewindow(rootmenu);
+ XFreeFont(dpy, dc.font);
+ XFreeGC(dpy, dc.gc);
XCloseDisplay(dpy);
exit(0);
}